<template>
  <div v-show="showFlag" class="food" transition="move" v-el:food>
    <div class="food-content">
      <div class="image-header">
        <img :src="food.image">
        <div class="back" @click="hide()">
          <i class="icon-arrow_lift"></i>
        </div>
      </div>
          <div class="content">
      <h1 class="title">{{food.name}}</h1>
      <div class="detail">
        <span class="sell-count">月售{{food.sellCount}}</span>
        <span class="rating">好评率{{food.rating}}%</span>
      </div>
      <div class="price">
         <span class="now">￥{{ food.price }}</span><span class="old" v-show="food.oldPrice">￥{{ food.oldPrice }}</span> 
      </div>
      <div class="cartcontrol-wrapper">
        <cartcontrol :food="food"></cartcontrol>
      </div>
      <div @click.stop.prevent="addFirst" class="buy" v-show="!food.count || food.count === 0" transition="fade">
        加入购物车
      </div>
    </div>
    <split v-show="food.info"></split>
    <div class="info" v-show="food.info">
      <h1 class="title">商品介绍</h1>
      <p class="text">{{ food.info }}</p>
    </div>
    <split></split>
    <div class="rating">
      <h1 class="title">商品评价</h1>
      <ratingselect :select-type="selectType" :only-content="onlyContent" :desc="desc" :ratings="food.ratings"></ratingselect>
      <!--评论区-->
      <div class="rating-wrapper">
        <ul v-show="food.ratings && food.ratings.length">
          <li v-show="needShow(rating.rateType,rating.text)" v-for="rating in food.ratings" class="rating-item border-1px">
            <div class="user">
              <span class="name">{{rating.username}}</span>
              <img class="avatar" width="12" heigth="12" :src="rating.avatar" />
            </div>
            <div class="time">{{rating.rateTime | formatDate}}</div>
            <p class="text">
              <span :class="{'icon-thumb_up':rating.rateType===0,'icon-thumb_down':rating.rateType===1}"></span>{{rating.text}}
            </p>
          </li>
        </ul>
        <div class="no-rating" v-show="!food.ratings || !food.ratings.length">
          暂无评价
        </div>
      </div>
    </div>
    </div>

  </div>
</template>

<script type='text/ecmascript-6'>
import Vue from 'vue';
import BScroll from 'better-scroll';
import {formatDate} from 'common/js/date'; 
import cartcontrol from 'components/cartcontrol/cartcontrol';
import split from 'components/split/split';
import ratingselect from 'components/ratingselect/ratingselect';

const ALL = 2;

export default {
  props:{
    food: {
     type:Object
    }     
  }, 
  data () {
    return {
      showFlag: false,
      selectType: ALL,
      onlyContent: true,
      desc:{
        all:'全部',
        positive:'推荐',
        negative:'吐槽'
      }
    };
  },
  methods: {
    show() {
      this.showFlag = true;
      this.selectType = ALL;
      this.onlyContent = true;
      //初始化better-scroll
      this.$nextTick(() => {
        if (!this.scroll) {
            this.scroll = new BScroll(this.$els.food,{
              click: true,
          });
        } else {
          this.scroll.refresh();
        }
      })
    },
    hide(){
      this.showFlag = false;
    },
    addFirst(event){
      if(!event._constructed){
        return;
      }
      this.$dispatch('cart.add', event.target);
      Vue.set(this.food, 'count', 1);
    },
    needShow(type, text){
      if (this.onlyContent && !text) {
        return false;
      }
      if (this.selectType === ALL) {
        return true;
      } else {
        return type === this.selectType;
      }
    }
  },
  events: {
    'ratingtype.select'(type) {
        this.selectType = type;
        this.$nextTick(() => {
          this.scroll.refresh();
        })
        
    },
    'content.toggle'(onlyContent) {
        this.onlyContent = onlyContent;
         this.$nextTick(() => {
          this.scroll.refresh();
        })
    }
  },
  filters:{
    formatDate(time){
      let date = new Date(time);
      return formatDate(date, 'yyyy-MM-dd hh:mm');

    }
  },
  components: {
    cartcontrol,
    split,
    ratingselect
  }
}
</script>

<style lang='stylus' rel='stylesheet/stylus'>
   @import "../../common/stylus/mixin.styl"   
    .food
        position:fixed
        left:0
        top:0
        bottom: 48px
        z-index: 30
        width: 100%
        background: #fff
        &.move-transition
          transition all 0.2s linear
          transform translate3d(0, 0, 0)
        &.move-enter,&.move-leave
          transform translate3d(100%, 0, 0)
        .image-header
          position relative
          width 100%
          height 0
          padding-top 100%
          img 
            position absolute
            top 0
            left 0
            width 100%
            height 100% 
          .back
            position absolute
            top 10px
            left 0
            .icon-arrow_lift
              display block
              padding 10px
              font-size 20px
              color #fff
        .content
          position relative
          padding 18px
          .title
            line-height 14px
            margin-bottom 8px
            font-size 14px
            font-weight 700
            color rgb(7, 17, 27)
          .detail
            margin-bottom 18px
            line-height 10px
            height 10px
            font-size 0
            .sell-count, .rating
              font-size 10px
              color rgb(147, 153, 159)
            .sell-count
              margin-right 12px
          .price
            font-weight: 700
            line-height: 24px
            .now
              margin-right: 8px
              font-size: 14px
              color: rgb(240, 20, 20)
            .old
              text-decoration: line-through
              font-size: 10px
              color: rgb(147, 153, 159)   
          .cartcontrol-wrapper
            position absolute
            right 12px
            bottom 12px
          .buy
            position absolute
            right 18px
            bottom 18px
            z-index 10
            line-height 24px
            padding 0 12px
            box-sizing border-box
            border-radius 12px
            font-size 10px
            color #fff
            background rgb(0, 160, 220)
            &.fade-transition 
              transition all 0.2s
              opacity 1
            &.fade-enter,&.fade-leave
              opacity 0
        .info
          padding 18px
          .title
            line-height 14px
            margin-bottom  6px
            font-size 14px
            color rgb(7, 17, 27)
          .text
            line-height 24px
            padding 0 8px
            font-size 12px
            color rgb(77, 85, 93)
        .rating
          padding-top 18px
          .title
            line-height 14px
            margin-left 18px
            font-size 14px
            color rgb(7, 17, 27)
          .rating-wrapper
            padding 0 18px
            .rating-item
              position relative
              padding 16px 0
              border-1px(rgba(7, 17, 27, 0.1))
              .user
                position absolute
                right 0
                top 16px
                line-height 12px
                font-size 0
                .name
                  display inline-block
                  margin-right 6px
                  vertical-align top
                  font-size 10px
                  color rgb(147, 153, 159)
                .avatar
                  border-radius 50%
              .time
                margin-bottom 6px
                line-height 10px
                font-size 10px
                color rgb(147, 153, 159)
              .text
                line-height 16px
                font-size 12px
                color rgb(7, 17, 27)
                .icon-thumb_up,.icon-thumb_down
                  margin-right 4px
                  line-height 16px
                  font-size 12px
                .icon-thumb_up
                  color rgb(0, 160, 220)
                .icon-thumb_down
                  color rgb(147, 153, 159)
            .no-rating
              padding 16px 0
              font-size 12px
              color rgb(147, 153, 159)

                

</style>